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Finding the Fourth Proportional to 135,148.60, 202,868.70 and 76,099.60

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Solution

The fourth proportional to 135,148.60, 202,868.70 and 76,099.60 is: 114,231.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,148.60 : 202,868.70 = 76,099.60 : x
  2. Step 2: Convert to fraction form
    135,148.60/202,868.70 = 76,099.60/x
  3. Step 3: Cross multiply
    135,148.60x = 202,868.70 × 76,099.60
  4. Step 4: Simplify right side
    135,148.60x = 15,438,226,922.52
  5. Step 5: Solve for x
    x = 15,438,226,922.52/135,148.60
  6. Step 6: Final answer
    x = 114,231.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.